54results about How to "Promote sustainable development of resources" patented technology

The invention relates to an internal concrete curing compound and manufacturing method thereof. The ingredients include de-ionized water, non-metallic minerals, sodium hydroxide, acrylic acid and/or derivative monomer, water-soluble initiators of free radical polymerization, water-soluble cross-linker of free radical polymerization and addictive. The preparing method for the internal curing compound of solution-type concrete is characterized in that the following procedures are applied: 1) preparation of raw materials; 2) mixing of de-ionized water, sodium hydroxide, acrylic acid and/or derivative monomer; 3) the mixed solution is added and mixed with and in order of cross-linker, initiator, non-metallic minerals, epoxy ethane, rust retardant agent; the internal concrete curing compound can be obtained following a homogeneous mixing and heating with recycled hot air. The invention can save curing water, reduce manpower/material input, minimize addictive cost, effectively control water evaporation, reduce the cost for late concrete curing and enhance the comprehensive performance of concrete addictives, which proves to be environment friendly with respect to environmental impact.

This invention relates to a method for preparing water-retaining sustained/controlled-release fertilizer, which comprises: nonmetal minerals, water-soluble ethylene-based unsaturated monomer, water-soluble free radical polymerization initiator, crosslinker, fertilizer, and excipient. The method comprises physical mixing, chemical synthesis and coating. The obtained fertilizer has sustained/controlled release, water retaining, and soil improving functions. The fertilizer has such advantages as high fertilizer utility, low cost of water-retaining agent, convenient application, and no pollution.

The invention relates to the technical field of lithium battery cathode material preparation, discloses a preparation method of a high-specific-capacity lithium battery cathode material, and solves the problems that a sulfur-containing composite material cannot meet the requirement of rapid charging and discharging, a large amount of auxiliary conductive agent needs to be added, the sulfur-containing composite material is easily dissolved in electrolyte during discharging and the service life of a battery is influenced, the performance of the sulfur-containing composite material in the lithiumbattery is remarkably improved, the performance of the positive electrode material can be effectively improved, the performance of the prepared positive electrode material is comprehensively improved, and the circularity is enhanced. According to the invention, the conductivity of the sulfur-carbon composite positive electrode material is improved, the specific capacity is high, the effective value reaches 1240-1300mAh/g, the sulfur-carbon composite positive electrode material can also show excellent cycle performance at room temperature, the properties of quick charge and discharge, long discharge time, light weight and the like of a lithium battery are further improved, the requirements of modern electronic equipment industry are met, the use amount of a conductive agent is reduced, andcost is reduced.

The invention relates to the technical field of new material processing and discloses a method for improving the performance of alloy cast iron for an automobile mold. Through the research on the alloy cast iron mold steel structure and material service performance, the low fatigue resistance of the alloy cast iron is solved from internal factors. The comprehensive performance of the mold materialis improved. After the alloy cast iron is smelted into molten iron and poured into a ladle in which the modified silica ceramic powder is placed in advanced, spheroidizing and inoculating are performed. After the reaction is completed, the slag removal purification is performed, and then the pouring forming is performed. In the preparation process of the modified silica ceramic powder, europium oxide and zirconium acetate are used as raw materials, and a rod-shaped nano europium oxide/zirconium oxide composite material is prepared through the reaction; and the nanostructure can prevent intercrystal grain from aggregating and growing and prevent the crack propagation, the good adhesion is shown, and the fatigue of the alloy structure is improved by forming an oxide mass point on the surface of an alloy, so that the prepared mold material has excellent thermal fatigue resistance.

The invention relates to a polyester type high-temperature-resistant powder coating. According to the invention, the preparation formula of the traditional polyester resin and the synthesis conditionsof reaction temperature, reaction time, additive addition and the like in the preparation process are changed; the physical and chemical properties of the prepared modified polyester resin are completely different from those of conventional polyester resin, the acid value of the prepared modified polyester resin is 69-79 mgKOH/g, the viscosity is 32-37 P/DEG C, the glass-transition temperature and decomposition temperature are increased, and the prepared modified polyester resin has good stability and heat resistance. The prepared powder coating is good in storage stability, not prone to agglomeration, beneficial to electrostatic spraying construction, good in film mechanical property and high in coating performance, the problem that a polyester resin system is poor in thermal stability is effectively solved, the mechanical property of a coating film is improved, and the effects of remarkably improving heat resistance, enhancing and toughening are achieved. The method is suitable forbatch production, the production cost of enterprises is greatly reduced, more economic benefits and social benefits are brought, and the method has very wide application prospects.

The invention relates to the technical field of wicker artware research, and discloses a processing method of wicker artware raw materials. According to the method, a protective coating material is prepared from prepared protective particles and a polyurethane emulsion, wicker artware raw materials are brushed with the protective coating material to form a protective film, and wicker artware is further prepared. According to the invention, with the treatment method, the physical and mechanical properties of wicker artware raw materials are improved, wherein when the water content is 4-5%, thecompressive strength reaches 93-96 MPa, and the wicker artware raw materials are not prone to cracking and deforming; the treatment method is easy to construct and short in curing and drying time, thetreatment reagent can be recycled, and the treated wicker has good antistatic and corrosion-resistant properties; and the method can well solve the problem that the processing and using properties ofweaving materials in the field of wicker artware cannot be effectively improved.

The invention relates to the technical field of preparation of novel building materials, and discloses a method for improving the utilization efficiency of gypsum in sulphoaluminate cement. The methodincludes pre-treating Gypsum to improve the activation performance of the gypsum; applying same for respectively preparing sulphoaluminate cement clinker and adding pretreated gypsum into the sulphoaluminate cement clinker in a post-mixing manner, thus improving the gel strength and reducing the water demand, promoting sulphoaluminate cement clinker firing, and reducing combustion temperature andcarbon dioxide yield; according to the invention, the zinc-containing multi-metal nano powder is utilized to improve the hydration activity of the calcium sulphoaluminate mineral, a large amount of post-doped gypsum is not needed, and the prepared sulphoaluminate cement has the strength 12-17% higher than that of the sulphoaluminate cement added by 2 times of the amount of gypsum. The invention solves the problems of high gypsum consumption and poor accumulation effect in the preparation of sulphoaluminate cement, further enhances the resistance, durability, cracking resistance and other properties of the sulphoaluminate cement, and effectively inhibits the defect of later compressive strength shrinkage of the sulphoaluminate cement.

The invention relates to the technical field of preparation of novel building materials, and discloses a method for reducing the preparation cost of sulphoaluminate cement. The method performs modification of fly ash, and the obtained modified fly ash is used as a bauxite substitute for preparing sulphoaluminate cement clinker; rare earth is used for activating hydration activity of mineral substances in the coal ash so as to provide early hydration strength for cement, and the stability of later activity is maintained; the method has a fast hydration speed, stimulates activity, exerts later strength, improves the microstructure of the sulphoaluminate cement slurry, inhibits the later strength from collapsing, is very beneficial to the performance development of sulphoaluminate cement, andreduces the production cost of cement. The prepared sulphoaluminate cement has the 3-day compressive strength of 56 MPa or above and the 28-day compressive strength of 78 MPa or above, fly ash is effectively utilized, and the cost is reduced.

The invention discloses a primitively ecological nano processing method for Chinese herbal medicines. The method comprises the following process steps: washing raw and fresh Chinese herbal medicines, smashing the Chinese herbal medicines into slurry at normal temperature, adding the obtained slurry in a vacuum pressure tank and vacuumizing, impregnating at normal temperature in vacuum by using reverse osmosis (RO) purified water, pressurizing to enhance osmosis at normal temperature, suddenly relieving the pressure so that the medicines are bulked, freezing in a refrigerator, smashing ice and breaking to form slurry at normal temperature, performing vacuum dehydration at the temperature of 40 DEG C, and performing vacuum screening to obtain dried nano powder. The method has the advantages of energy conservation, low carbon, primitive ecology as well as capacities of keeping the drug effects of original medicines as much as possible, fully exerting the effects of drug resources and improving sustainable development of the drug resources.

The invention relates to the technical field of textile industry development, and discloses a processing method for improving pilling resistance of a wool fabric. An anti-pilling finishing agent is prepared by a polymerization reaction; after finishing the wool fabric, a uniform breathable coating layer can be formed on the surface of a wool fiber, the relative breaking strength and the relative breaking elongation are improved to a certain extent, the wet mechanical performance is improved, the electrostatic phenomenon is significantly improved, both the static friction coefficient and the dynamic friction coefficient of the wool are substantially reduced, a fiber scale layer can be effectively fixed, and the stability of wool keratin is improved, so that the hair shaft can resist the erosion of external machinery, chemicals, etc., the wool gloss, the hand feeling and the comfort are maintained, the anti-pilling performance of the wool fabric is improved, and the wool fabric can be subjected to machine wash; and the process can well solve the problem of large fiber damages caused by the fact that the existing anti-pilling method destroys and removes the fiber scale layer by usingchemical reagents.

The invention relates to the technical field of furniture material performance research, and discloses a method for improving the durability of fast-growing wood furniture. The method comprises the following steps: preparing a fast-growing wood dipping treatment solution from a prepared silane modified polyether emulsion and a silica sol, then carrying out a hydrothermal pressure impregnation reaction so as to obtain modified fast-growing wood which is excellent in aging resistance and mechanical strength, and carrying out further processing so as to prepare wooden furniture. According to thetreatment method, the fast-growing wood has excellent properties of wear resistance, compression resistance, corrosion resistance, water resistance, aging resistance, stable physical and chemical properties and the like, can be widely applied to production of various furniture, and has excellent processing performance; and the method can well solve the problems that the fast-growing wood in the furniture field is common in processing and using performances and has a plurality of defects in processing and application, improves the strength performance of a fast-growing wood material, achieves good effect in a plurality of aspects, relieves the supply and demand contradiction of the wood, and realizes highly-efficient utilization of the fast-growing wood.

The invention relates to the technical field of agricultural and sideline product processing, and discloses a method for reducing the deterioration speed of rapeseed oil in a frying process. Accordingto the invention, the physical and chemical properties and the cooking taste of oil frying are studied, so that the problem that the rapeseed oil is oxidized and deteriorated to generate harmful substances in the high-temperature frying process is solved, the thermal oxidation, thermal polymerization, thermal decomposition and oxidation reactions are prevented under the frying high-temperature condition, the taste of the erucic acid in the rapeseed oil can be covered by adding the prepared anti-oxidation protection agent, the taste of the dish is not affected, the generation of the fragrancein the cooking can be promoted, and the food material processing is facilitated; the method comprises: preparing low-fat rapeseed oil by adopting a low-temperature squeezing method, adding a preparedanti-oxidation protection agent, and finally blending; and the process can well solve the disadvantage of high-temperature intolerance and easy deterioration of the existing rapeseed oil, is not addedwith harmful substances in the treatment process, has characteristics of no impurity residue, simple technology and low cost, and improves the utilization rate of the rapeseed oil in the frying process.

The invention relates to the technical field of processing of new materials and discloses a preparation method of a heating material for heating self-heating food. According to the invention, based onstudies on the principles of heat conduction, heat convection and heat transfer, the prepared magnetic porous-structure heating material is used as a heat source for self-heating of food, and good heat conduction effect is obtained; non-magnetic components are magnetized in virtue of magnetocaloric effect under the action of the magnetic force of nanometer iron oxide, so heat is further generatedto heat food; and the heating material does not generate harmful and dangerous gas in the use process, is high in heat release efficiency, can be repeatedly used after demagnetization, and is not affected in use effect. With the preparation method in the invention, the heating efficiency of the heating material for food can be remarkably improved, and heat production is stable; the heat release amount of the prepared heating material per unit mass reaches 1700-1800 kcal/kg; the prepared heating material is resistant to storage, light in weight, high in heat production efficiency, uniform in food heating, friendly to environment, and safe and convenient to used; and overturning is not needed in the using process of the heating material, so the taste and convenience of self-heating food areimproved.

The invention relates to the technical field of new material processing, and discloses a method for improving the production efficiency of vat dark blue BO. The process steps are integrated and optimized; the problem of low raw material utilization rate in vat dark blue BO production is solved from the aspect of reducing consumables; waste gas and waste liquid generated in the production process are repeatedly recycled; in the production process of the vat dark blue BO, three sets of synthesis methods of triethylene glycol, primary mother liquor and secondary mother liquor are carried out at the same time; the process conditions of the steps are tightly controlled, the reaction rate is accelerated, the loss is reduced, and the reaction time can be prevented from being too long; the dye hascharacteristics of crystallization and precipitation, peroxidation can be avoided, the prepared vat dye has excellent comprehensive performance, the process can well solve the disadvantages of a conventional anthrone vat dye during dyeing, and the comprehensive utilization rate of the processing raw material is improved so as to reduce the cost and improve the recycling performance of the recovered raw material.